What is the air quality trend in Thomson?

Over the past 3 days, Thomson had an average AQI of 142 based on station measurements. The worst day was 2026-09-03 with AQI 158.

How is Thomson air quality measured?

Air quality in Thomson is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Thomson, Singapore

Name: Thomson Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Thomson, Singapore.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

47h

PM2.5 Station

47h · 3 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-09-05	121	103–132	43.6 µg/m³	52.6	14h	3
2026-09-04	149	96–174	66.1 µg/m³	73.5	24h	3
2026-09-03	158	143–167	70.5 µg/m³	78.3	9h	3

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